New restrictedMinZoom property, like restrictedExtent

[ahocevar]

The existing minZoomLevel property on Layer.FixedZoomLevels is a nice way to limit the used resolutions of layers provided by third-party apis, but it changes the numbering of zoom levels. The suggested restricedMinZoom property works similar to restricedExtent - it retains the zoom level numbering, but restricts the layer from being used at low zoom levels. This is especially useful when a map is configured with allOverlays: true.

[ahocevar]

Patch with tests. Tests pass in Safari5. Thanks for any review.

[bartvde]

ahocevar: this looks good to go, I only found one error in a testcase:

      //custom minZoomLevel on baseLayer
        map.baseLayer.minZoomLevel = 1;

should be restrictedMinZoom instead of minZoomLevel or not?

Respective tests also pass on FF 3.6 and IE8 btw.

[ahocevar]

Thanks for the review @bartvde. This was a typo indeed. Committing fixed version.

In w/ r11058